O office



May 17 1927.

BRAKE Filed July 23 ,LQG

ENVEN iOR OJTO B CLARK.

Patented 17, 1927.

OTTO B. CLARK, Ao1? EVANsvILLn, INnLANA, .,AssIGNon'ro BENDIX orCHICAGO, ILLINOIS, A CORPORATIQN F mLINoIs.

naze-95o PATENT. oFFicE;

BRAKE CQMPANY,

BRAKE.'

Application filed July 23,

tion parti delining"iinfopenng through the' v e'peciiillyndifuntugeousiu a jectingfet its' c' nd through .tliieopening'so defi 'ned.y thus in effectfoyerliipplngj the shoes.

to. fasteninglr lthe fbushiug .in phie'e v in the shoe by peeningorotherwise displacing lintegral parts of the lmslrir'rg` againstthcfsl'ioe. .'lll efabove ilnddoth-eij objects 'nnl features of 'theinvention,'ineludingjvnrious novel combinations oil-parts and desirableparticularc'on'str2 uctionfn n ill he upper'entfrom the follow-inf"description o l" one illustrative emliodim'entshownin tho accompanyingdraw# inge.,'in-'Which: l l

Figure. 1 isA vertical .raction through' 'u brake embodyinfljthe.ini-'en i just inside theheadlotthe-drum, and :ihowmg the shoes insideelevation.; im F ignieil n sectioi'i oli th'oxliue 2-'2 'of Figure 1',".showligtheV hushingsfinthe ends Eig-ure --s'a section throughfone-ofthe shoes on? thc line illof Figui-e1: Y

' Fifg'ure 5 is a section 'through niiother shoe on the-line 5 5 of.Figure 1 .and

oli and'etiiil 'ot .Figure 2: The brake lillustrated includes a rotat-:iblc drinn 10. et the ope'nside of which is u backing plate 0r the likel2, and Within which are uri-:mecd three bri-.kc shoes 14. 16, and 1S.Shoe 18 is anchored ou u pivot 20, shoe 1G is anchored on n pivot 22.:ind shoe 14 is connected to shoe 16 by :i pivot 9.4.

The brake is applied by means such as n double cum 26shou-'n -withan endflange 2l; confining .laterally theyfree 'ends o'E shoes 1- end 18. Aswinnt-ter of convenencccnm 2G is shown in olf position, althoughtheshoes Iliuvilg. the nex't udjecentshoe pro-' 5 lAnother feature of.- thiinfenton relater;-

forced ifdesired by inner flanges 'As besty appears in Figure l, flanges38 wise secured together .liaclrto back, with cy-A lindri'cal :flanges34 jointly forming" vthe fri' tion part o'l".tlie'sl1oe und carrying thebirgt-lie. lining? 36. und `with ra'clizil. .flanges jointly forming astilening wehjhetxi'ecnfthe side'- 'edgs'o thc shoernnd ifdesir lstrcngtlieilb ed lqyslioit .inner flanges 40; i' i Shoe. 116 cons' ists.mainly of two stumpings'v 1s riveted orotherwise securelfu. frictionpart sucli'zis a lmnd`45tcarrying the lining'46,fnnd

honing; spucenl-:rpnrtf radial Eflanges' 48 reinA shoel 1S p rojegztbeyond. iind witl'iin the ciu-.vc of the friction pix-rt 34 to form an'anchoring ii-rin pivotcd'on :inc hOrQO, ii'hile' flanges 4S. of shoe16I'Jroject 'beyond undf Withiuthe curve of' the 'friction part 4410 Vforni a nuirgof spsiccd anchoring arrmsstriiddling the enchoring arm ofshoe'lund p ivotedjon the anchor 22 An 'iunior-timbfeziture of the.invention'.v relfitesgtoprovi'll 85 ing these anchoring arms or`theirequhiulents with separate bushings for enchere 2 0. :1=i;l c`l. l

vf2,. \'vhich bushings also serv'elo strengthen Fla-n :z'esfBS of shoe18, asfs'hown `in Eiguresl und '3. are provided lwith openingsvsurrounded; hyf voppo'sitelyY and...'out wa 1`c ll \f projecting tubularbosses or flanges 54;. which' boeses nrc sleeved on n Separate hiishingfBushing` 56 hns a thickened cent'rzigl ortion 58 forming at its endscurved shoul l ers engaging the bones01 the tubularbos'ses 54;` and has:i relatively thin integral part or flange 6() peened or otherwisedisplaced over the edge of auch of the bosses 54 to lock the bushingpernmnently to the shoe.

Flangcs 48 of shoe 16, which may converge Slightly in the casccf arelatively wide shoe such as the one shown, are also formed. with alincdopeningsT about vwhich the. metal.,- s dmwn to form oppositcly undoutwzudl)i projecting tubular bosses or flanges .62 rc? los thickenedcentral )oi'tion 66 forming, by its ends, oppositclyirected curvedshoulders seated against the bases of the tubulaibosses 62. Bushing 64also h as integral parts si'icli as relatively thin flanges 68 pcened orotherwise displaced over the edges of the tubular bosses 62 toflock' thebushing permanently to the shoe.

It should be nrticuliirlynoted that, in the arrangement i lustrated inthe drawing, b usliinrr 64, the two spaced flanges 48, and the en offriction :part 4:4, iill cooperiite to define an openin in shoe 16,through .which thennchored endg' of shoe-18 projects, thus in effectoverlapping tlieshoes.I

. 'L lrVhilev one illustrative' embodimenths l been describedinfdetail',i't not' myinten- -tion vto limit the scopeoffthenvention tothat f particular veinbodii'nent, or otherwise than by thextei'ms'of theeppended'claims.

Icleim': 1, -l. lA broke Vcomprising in' combination, ii shoe having 'acylindrical rictionjpixrt and ii' pair of spaced iii-ins projectingbeyond Yand within thevv curve Voffsnid' friction part,- ii

separate bushing secured to said. iirms at their end ,and servingfas Aevconnection lietween the arms and also to receive a pivot for the shoe,and ii'second slice having a part proj ecting .through the-openingdefined hy suidarins und siiidbnshing vand by the end ofthe frictionpart.

Abriilce coii'iprising, in combinatiomfn shoe having :i cylindrical,friction part 'and ii 'piiir of spaced arms' projecting beyond I :indWithin the curve of seid' friction part,

n 'seperate bushingfsecnredto seid arms at tlieircndand ser-ving" as.9.' connection b etween the arms` n Apivot enclior 'forthe shoereceived in 'siiidfbiishinm und 'it-second shoe ing :im anchoring' n rinextending beyond and within the -cur ve of the friction part endprojecting"through the opening`-defined by nesting the ends ofv seidspaced arms and with the arms und the end of the friction partdefining-an opening through the shoe.

4. A brake shoe comprising a. cylindrical friction part and a pair of saced arms projectin'g'beyond and within 'tie curve of the friction partand hevinglnlined openings in their ends, and ii. seperate bushi in saidopenings connecting the ends of saidspaced arms and with the'arinsnndthe end of the friction part defining im opening through the shoe, thebushingr having-integral vports displaced over the ledges of seid`openings to hold it.

5. A brake shoe coii'iprisiug n cylindrical friction part and tivostiffening anges projecting.. beyond and within the curve of' said.rictionp'art and 'formed at their ends with `iiliued openings,-u'nd :1-separate bushing in said openings hnvingintegriil part-s dis# placedover the edges of soido'peiiings to hold it.

e. A nike .time comprising a Cyiiiidrieai tubular flanges, sind having'integral .parts displaced over the edges of said .tubular flanges 8. Ab'riike slice having .two pressed metal flanges having alined openings,Vwith the metal about each of the openings .drawn out to form a tubularflange projecting' a'wiiy from the center of thefshoe, and-a seperatebushing in the opening'sliiiving a. relatively thickA ccnt-riilportionffoiming shoulders 'seated .against the bases of said tubularflanges, and hiiving integral parts -displaced over the edgesofsuidtiibular flanges.

In testimony whereof, I have hereunto signed my neme.

OTTO B. CLARK.

